For 2009, see here
I created this web page to enable me to easily watch the NCAA Tournament on non Windows (and non IE) machines, namely my Linux laptop
Just for reference, I've had the best luck using the VideoLan Client to play these links
Round of 64: March 20, 2008 | March 21, 2008
Round of 32: March 22, 2008 | March 23, 2008
Sweet 16: March 27, 2008 | March 28, 2008
Elite 8: March 29, 2008 | March 30, 2008
Final 4: April 5, 2008
Championship Game: April 07, 2008
Kansas (75) vs. Memphis (68) - Final